检测系统是不是windows xp

下面的代码可以检查所用的系统是不是windows xp
uses Registry;
...

function IsWinXP: Boolean;
begin
  Result := False;
  if Win32Platform = VER_PLATFORM_WIN32_NT then
    with TRegistry.Create do
    try
      RootKey := HKEY_LOCAL_MACHINE;
      if OpenKeyReadOnly('\Software\Microsoft\Windows NT\CurrentVersion') then
        Result := (ReadString('ProductName') = 'Microsoft Windows XP');
    finally
      Free;
    end;
end;

//rock
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